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| Preparation of Magnetic Fe3O4@SiO2-HEHEHP Composite and Its Adsorption on Y(Ⅲ) |
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Received:June 08, 2023
Revised:June 19, 2023
Accepted:June 21, 2023
Published Online:October 09, 2023
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| DOI：doi：10.3969/j.issn.1007-7545.2023.11.015 |
| KeyWord:sol-gel method; rare earth adsorption; Fe3O4@SiO2-HEHEHP; magnetic hybrid materials |
| Author | Institution |
| ZAN Miaomiao |
江西理工大学材料冶金化学学部 |
| LIU Jiaming |
江西理工大学 |
| WANG Jie |
江西理工大学 |
| ZHOU Jian |
江西理工大学 |
| PENG Jiaqing |
江西理工大学 |
| HE Shiwei |
自然资源部离子型稀土资源与环境重点实验室办公室 |
| XIAO Yanfei |
江西理工大学材料冶金化学学部 |
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| Abstract: |
| The conventional extraction process of rare earth will produce a large amount of rare earth waste solution, which will pollute the environment and lead to the loss of rare earth resources. To solve this problem, Fe3O4@SiO2-HEHEHP (hereafter referred to as FSP) magnetic hybrid material was prepared by sol-gel method and used as adsorbent to enrich and recover rare earth ions with low concentration in aqueous phase. The structural morphology and other physical and chemical characteristics of FSP were investigated by testing methods such as XRD, SEM, EDS, FT-IR, BET, and magnetic property analysis. The adsorption behavior of FSP on Y(Ⅲ) was investigated. The results show that the FSP has a core-shell structure and the outer layer of SiO2 can protect the inner Fe3O4 nanoparticles under the acidic environment, and the HEHEHP extractant is successfully loaded on the surface of the magnetic adsorption material. FSP has a large number of porous structures on its surface, which has a certain promoting effect on adsorption. The magnetic FSP can be regenerated and used, and the adsorption rate still reaches 86.29% after three cycles. |
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